CN103437993B - Self-sucking pump for high-pressure cleaner - Google Patents

Self-sucking pump for high-pressure cleaner Download PDF

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Publication number
CN103437993B
CN103437993B CN201310421204.8A CN201310421204A CN103437993B CN 103437993 B CN103437993 B CN 103437993B CN 201310421204 A CN201310421204 A CN 201310421204A CN 103437993 B CN103437993 B CN 103437993B
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capsule
platen
self
mounting rod
pump
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CN103437993A (en
Inventor
孙伟国
张时焜
冯国栋
曾宏
董乾清
严锋杰
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NINGBO FUSLE MECHANICAL MANUFACTURING Co Ltd
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NINGBO FUSLE MECHANICAL MANUFACTURING Co Ltd
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Abstract

The invention discloses a self-sucking pump for a high-pressure cleaner, and belongs to the technical field of self-sucking pumps. The self-sucking pump for the high-pressure cleaner comprises a pump body; the pump body is provided with a material inlet and a material outlet, and is provided with a material cavity which is communicated with both of the material inlet and the material outlet; the material cavity is internally provided with a plunger slidably driven by a power device; the material inlet is formed in an axis of the plunger; the material inlet and the material outlet are respectively provided with a first capsule and a second capsule respectively; the first capsule and the second capsule are communicated through a pipeline, and are both internally filled with circulation media; the pipeline is provided with a bidirectional pump. The self-sucking pump for the high-pressure cleaner provided by the invention solves the technical problems that a traditional plunger-type self-sucking pump unidirectional valve is affected greatly by impurities, and is poor in seal effect, and is widely applied to the production and manufacture of self-sucking pumps.

Description

A kind of self-priming pump for jetting machine
Technical field
The present invention relates to a kind of self-priming pump technical field, particularly relate to a kind of self-priming pump for jetting machine, belong to pump technical field.
Background technique
Self-priming pump is the core parts of jetting machine, carries out design and evaluation to it, is the key point of development high-pressure wash machine technology.
At present, it is several that existing self-priming pump is broadly divided into plunger type, blade type, gear type etc. by structural type, and wherein the water pump of plunger type is high due to efficiency, obtains the research and development of large-scale popularization and new product in actual life.But existing plunger type self-priming pump is owing to being all provided with one-way valve at water intake and water outlet, in use, once have foreign material between the spool and the sealing surface of valve body of one-way valve, self-priming pump will be made to produce interior leakage, the liquid namely sucked in material chamber from water intake can some be discharged from water intake again, this not only affects self-priming pump delivery but also affect self-priming lift of pump, greatly have impact on the normal use of plunger type self-priming pump in jetting machine.
Therefore, based on above-mentioned defect, at preparation and the production field of jetting machine, for the demand that Self-priming pump still exists research and improves, this is also a study hotspot in the production of current self-pumping and manufacture field and emphasis, especially the starting point that is accomplished of the present invention and power place.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of self-priming pump for jetting machine, to solve conventional post plug self-priming pump one-way valve by the technical problem that impurity effect is large, sealing effect is bad.
For solving the problems of the technologies described above, technological scheme of the present invention is: provide a kind of self-priming pump for jetting machine, described self-priming pump comprises the pump housing, the described pump housing is provided with material feeding mouth and discharge port, the described pump housing is provided with the material chamber being all communicated with described material feeding mouth and discharge port, the plunger driven by power plant is slidably fitted with in described material chamber, described material feeding mouth is positioned on the axis of described plunger, described discharge port is positioned in the radial direction of described plunger, the described pump housing is provided with charging partition wall and discharging partition wall, described charging partition wall is provided with the feeding-passage being communicated with described material feeding mouth and material chamber, described discharging partition wall is provided with the tapping channel being communicated with described discharge port and material chamber, the first capsule is provided with in described material feeding mouth, described first capsule is fixedly installed on the first mounting rod, described first mounting rod is fixedly installed on described charging partition wall, the second capsule is provided with in described discharge port, described second capsule is fixedly installed on the second mounting rod, described second mounting rod is fixedly installed on discharging partition wall, described first mounting rod has the first center hole, described first center hole is communicated with the blister cavities of described first capsule by the first through hole, described charging partition wall is provided with the first-class circulation passage being communicated with described first center hole, described second mounting rod has the second center hole, described second center hole is communicated with the blister cavities of described second capsule by the second through hole, described discharging partition wall is provided with the second circulation passage being communicated with described second center hole, described second circulation passage is by first-class circulation passage described in pipeline connection, all circulation medium is filled with in described first capsule and the second capsule, described pipeline is provided with two-way pump.
In described self-priming pump of the present invention, improve as one, described material feeding mouth has a charging conical surface corresponding with described first capsule position, and the small end of the described charging conical surface is away from described material chamber; Described discharge port has a discharging conical surface corresponding with described second capsule position, and the small end of the described discharging conical surface is near described material chamber.
In described self-priming pump of the present invention, improve as one, it is uncovered that described first capsule has two the first capsules be oppositely arranged, described first mounting rod is interval with platen in two first, in two described first, platen is all fixedly installed on described first mounting rod, in each described first, the equal correspondence of platen is provided with one first external pressure plate, the edge that two described first capsules are uncovered clamps in described first of correspondence between platen and the first external pressure plate respectively, and described first through hole is in two described first between platen; It is uncovered that described second capsule has two the second capsules be oppositely arranged, described second mounting rod is interval with platen in two second, in two described second, platen is all fixedly installed on described second mounting rod, in each described second, the equal correspondence of platen is provided with one second external pressure plate, the edge that two described second capsules are uncovered clamps in described second of correspondence between platen and the second external pressure plate respectively, and described second through hole is in two described second between platen.
In described self-priming pump of the present invention, as further improvement, described pipeline is provided with circulation medium and supplements mouth.
In described self-priming pump of the present invention, as further improvement, described power plant comprise the cam driven by reducing motor, are provided with Returnning spring between described plunger and the pump housing, under the active force of described Returnning spring, the end of described plunger relies on the side face of described cam.
After have employed technique scheme, the present invention achieves the beneficial effect of multiple excellence, such as:
1. owing to being provided with the first capsule and the second capsule respectively at material feeding mouth and discharge outlet, the change of circulation medium volume in capsule is utilized to make capsule generation elastic strain, form sealing, sealing effect is greatly improved, when having impurity to retain on sealing surface, the deformation of capsule can seal around impurity, plays sealing effect equally, and more traditional hard sealing effect is increased dramatically; Meanwhile, because in capsule, the volume of circulation medium constantly changes, make capsule compared with traditional spool, volume is reduced, increase circulation area, thus the flow in the self-priming pump unit time is improved, improve the pumping efficiency of self-priming pump.
2., because capsule is fixedly mounted on mounting rod by interior platen and external pressure plate, make the dismounting of capsule and safeguard convenient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is embodiment of the present invention suction phase diagram;
Fig. 2 is the phase diagram of embodiment of the present invention discharge;
Fig. 3 is the installation diagram of the first capsule and the first mounting rod in the embodiment of the present invention.
Wherein, in fig. 1-3, each number designation refers to following concrete meaning, element and/parts respectively.
In figure: 1, the pump housing, 2, material chamber, 3, material feeding mouth, 4, discharge port, 5, charging partition wall, 6, feeding-passage, the 7, first mounting rod, the 8, first capsule, 9, discharging partition wall, 10, tapping channel, the 11, second mounting rod, the 12, second capsule, 13, pipeline, 14, two-way pump, 15, plunger, 16, cam, 17, Returnning spring, the 18, first center hole, 19, the first through hole, platen in 20, first, the 21, first external pressure plate.
Embodiment
Below in conjunction with accompanying drawing; the present invention is described in detail by specific embodiment; but the purposes of these property enumerated mode of executions and object are only used for enumerating the present invention; not any type of any restriction is formed to real protection scope of the present invention, more non-protection scope of the present invention is confined to this.
As Fig. 1 and Fig. 3 jointly shown in, a kind of self-priming pump for jetting machine, mainly comprise the pump housing 1, the pump housing 1 is provided with material feeding mouth 3 and discharge port 4, the pump housing 1 is provided with the material chamber 2 being all communicated with material feeding mouth 3 and discharge port 4, material is slidably fitted with the plunger 15 driven by power plant in chamber 2, material feeding mouth 3 is positioned on the axis of plunger 15, discharge port 4 is positioned in the radial direction of plunger 15, the pump housing 1 is provided with charging partition wall 5 and discharging partition wall 9, charging partition wall 5 is provided with the feeding-passage 6 being communicated with material feeding mouth 3 and material chamber 2, discharging partition wall 9 is provided with the tapping channel 10 being communicated with discharge port 4 and material chamber 2, the first capsule 8 is provided with in material feeding mouth 3, first capsule 8 is fixedly installed on the first mounting rod 7, first mounting rod 7 is fixedly installed on charging partition wall 5, the second capsule 12 is provided with in discharge port 4, second capsule 12 is fixedly installed on the second mounting rod 11, second mounting rod 11 is fixedly installed on discharging partition wall 9, first mounting rod 7 has the first center hole 18, first center hole 18 is communicated with the blister cavities of the first capsule 8 by the first through hole 19, charging partition wall 5 is provided with the first-class circulation passage of connection first center hole 18, second mounting rod 11 has the second center hole, second center hole is communicated with the blister cavities of the second capsule 12 by the second through hole, discharging partition wall 9 is provided with the second circulation passage of connection second center hole, second circulation passage is communicated with first-class circulation passage by pipeline 13, all circulation medium is filled with in first capsule 8 and the second capsule 12, circulation medium selects water or hydraulic oil usually, in order to raise the efficiency, pipeline 13 is provided with two-way pump 14, the flow in the circulation medium unit time can be improved, circulation medium in first capsule 8 and the second capsule 12 is circulated fast, usual two-way pump 14 is preferably double-direction gearpump.In order to meet different pressures sealing, pipeline 13 is provided with circulation medium and supplements mouth, can supplement circulation medium in time, changes the internal pressure of the first capsule 8 and the second capsule 12.
Power plant comprise the cam 16 driven by reducing motor, are provided with Returnning spring 17 between plunger 15 and the pump housing 1, and Returnning spring 17 is preferably stage clip, and under the active force of Returnning spring 17, the end of plunger 15 relies on the side face of cam 16.Chinese utility model patent CN201650707U discloses a kind of self-sucking pump used for high-pressure washing machine, its power plant are motor-driven end cam, end cam is provided with bearing, plunger leans at bearing surface, the stroke of this structure plunger is little, and end cam surface configuration to be subject to the constraint of bearing very large, no matter there is several change on end cam surface, after bearing is installed, the motion of plunger is only a kind of rhythm, its movement rhythm can not be changed along with the multiple change of end cam, therefore present patent application is by cam 16 side face drive plunger 15, the movement rhythm of plunger 15 can be changed, such as quick discharge, suction or at a slow speed discharge at a slow speed, quick suction etc.
Material feeding mouth 3 has a charging conical surface corresponding with the first capsule 8 position, and the small end of the charging conical surface is away from material chamber 2; Discharge port 4 has a discharging conical surface corresponding with the second capsule 12 position, and the small end of the discharging conical surface is near material chamber 2.The advantage of such design serves better sealing effect, makes capsule be unlikely to be subject to both sides pressure reduction and leak.
It is uncovered that first capsule 8 has two the first capsules be oppositely arranged, first mounting rod 7 is interval with platen 20 in two first, in two first, platen 20 is all fixedly installed on the first mounting rod 7, in each first, the equal correspondence of platen 20 is provided with one first external pressure plate 21, in first, platen 20 is connected by fastening piece with the first external pressure plate 21, the edge that two the first capsules are uncovered clamps in first of correspondence between platen 20 and the first external pressure plate 21 respectively, and the first through hole 19 is in two first between platen 20; It is uncovered that second capsule 12 has two the second capsules be oppositely arranged, second mounting rod 11 is interval with platen in two second, in two second, platen is all fixedly installed on the second mounting rod 11, in each second, the equal correspondence of platen is provided with one second external pressure plate, in second, platen is also connected by fastening piece with the second external pressure plate, the edge that two the second capsules are uncovered clamps in second of correspondence between platen and the second external pressure plate respectively, and the second through hole is in two second between platen.
In addition, inventor is through research and practice, all flange is devised at the uncovered edge of the first capsule 8 and the second capsule 12, the thickness of flange is made obviously to be greater than the wall thickness of the first capsule 8 and the second capsule 12, simultaneously, the groove suitable with flange is devised between platen and external pressure plate in corresponding, capsule can be made can to bear larger pressure when sealing and be unlikely to from deviating between interior platen and external pressure plate, the material of the first capsule 8 and the second capsule 12 is preferably nitrile rubber, there is oil resistant, acid resistant alkali, resistance toly to subdue, intensity is high, the features such as long service life.General thinking, capsule and plane contact thus reach sealing effect, be interpreted as that the plane of capsule its sealing effect more smooth is better, the working life of capsule is longer, but, inventor finds through experiment, adhere in the plane when there being impurity (especially granular hard impurity), when capsule and plane contact seal, impurity can give capsule one active force, this power active area is little, in long seal process, very large to the destructiveness of capsule, therefore inventor is provided with some depressions at the outer surface of the first capsule 8 and the second capsule 12, these depressions are convenient to hold impurity, to reduce the destruction of impurity to capsule, extend the working life of capsule, do not affect again the sealing effect of capsule.
The working procedure of self-priming pump of the present invention is as follows:
As shown in Figure 1, during suction, circulation medium in first capsule 8 is pumped in the second capsule 12 by two-way pump 14, second capsule 12 is by discharging conical surface seal, discharge port 4 seals, first capsule 8 volume-diminished, material feeding mouth 3 is opened, if discharging conical surface surface attachment has impurity, the second capsule 12 depression in the surface then holds impurity, to reduce the destruction of impurity to the second capsule 12, reducing motor band moving cam 16 rotates, and under the effect of Returnning spring 17, plunger 15 is to deviating from the motion of material feeding mouth 3 direction, form negative pressure in material chamber 2, material just enters material chamber 2 by material feeding mouth 3.
As shown in Figure 2, during discharge, the circulation medium in the second capsule 12 is pumped in the first capsule 8 by two-way pump 14, first capsule 8 is by charging conical surface seal, material feeding mouth 3 seals, the second capsule 12 volume-diminished, and discharge port 4 is opened, now, cam 16 rotates, compression reseting spring 17, and plunger 15 moves to material feeding mouth 3 direction, the pressure of two-way pump 14 pairs of circulation mediums is greater than the pressure of plunger 15 pairs of materials, forms high pressure and pumped by discharge port 4 by material in material chamber 2.
Although in order to the object of illustrating and describe, and describe structure and processing procedure shown in above-mentioned mode of execution of the present invention and accompanying drawing.But these are not detailed descriptions, can not by limit of the present invention in this.For a person skilled in the art, numerous modifications and variations can be made to above-mentioned mode of execution of the present invention, and these all amendments and/or change are all included in as within claim limited range of the present invention, do not depart from as described in claim the scope and spirit of the present invention that limit.

Claims (5)

1. for the self-priming pump of jetting machine, comprise the pump housing, the described pump housing is provided with material feeding mouth and discharge port, the described pump housing is provided with the material chamber being all communicated with described material feeding mouth and discharge port, the plunger driven by power plant is slidably fitted with in described material chamber, described material feeding mouth is positioned on the axis of described plunger, described discharge port is positioned in the radial direction of described plunger, it is characterized in that: the described pump housing is provided with charging partition wall and discharging partition wall, described charging partition wall is provided with the feeding-passage being communicated with described material feeding mouth and material chamber, described discharging partition wall is provided with the tapping channel being communicated with described discharge port and material chamber, the first capsule is provided with in described material feeding mouth, described first capsule is fixedly installed on the first mounting rod, described first mounting rod is fixedly installed on described charging partition wall, the second capsule is provided with in described discharge port, described second capsule is fixedly installed on the second mounting rod, described second mounting rod is fixedly installed on discharging partition wall, described first mounting rod has the first center hole, described first center hole is communicated with the blister cavities of described first capsule by the first through hole, described charging partition wall is provided with the first-class circulation passage being communicated with described first center hole, described second mounting rod has the second center hole, described second center hole is communicated with the blister cavities of described second capsule by the second through hole, described discharging partition wall is provided with the second circulation passage being communicated with described second center hole, described second circulation passage is by first-class circulation passage described in pipeline connection, all circulation medium is filled with in described first capsule and the second capsule, described pipeline is provided with two-way pump.
2., as claimed in claim 1 for the self-priming pump of jetting machine, it is characterized in that: described material feeding mouth has a charging conical surface corresponding with described first capsule position, and the small end of the described charging conical surface is away from described material chamber; Described discharge port has a discharging conical surface corresponding with described second capsule position, and the small end of the described discharging conical surface is near described material chamber.
3. as claimed in claim 1 or 2 for the self-priming pump of jetting machine, it is characterized in that: it is uncovered that described first capsule has two the first capsules be oppositely arranged, described first mounting rod is interval with platen in two first, in two described first, platen is all fixedly installed on described first mounting rod, in each described first, the equal correspondence of platen is provided with one first external pressure plate, the edge that two described first capsules are uncovered clamps in described first of correspondence between platen and the first external pressure plate respectively, and described first through hole is in two described first between platen; It is uncovered that described second capsule has two the second capsules be oppositely arranged, described second mounting rod is interval with platen in two second, in two described second, platen is all fixedly installed on described second mounting rod, in each described second, the equal correspondence of platen is provided with one second external pressure plate, the edge that two described second capsules are uncovered clamps in described second of correspondence between platen and the second external pressure plate respectively, and described second through hole is in two described second between platen.
4., as claimed in claim 3 for the self-priming pump of jetting machine, it is characterized in that: described pipeline is provided with circulation medium and supplements mouth.
5. as claimed in claim 1 for the self-priming pump of jetting machine, it is characterized in that: described power plant comprise the cam driven by reducing motor, Returnning spring is provided with between described plunger and the pump housing, under the active force of described Returnning spring, the end of described plunger relies on the side face of described cam.
CN201310421204.8A 2013-09-16 2013-09-16 Self-sucking pump for high-pressure cleaner Active CN103437993B (en)

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CN103437993B true CN103437993B (en) 2015-07-15

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104653426B (en) * 2015-01-20 2016-10-12 天津农学院 A kind of high-purity plunger piston type micro sampling pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735371A1 (en) * 1997-08-14 1999-02-18 Siemens Ag Fuel pump with pump cylinder
DE19963480A1 (en) * 1999-12-28 2001-07-05 Continental Teves Ag & Co Ohg Pump with encapsulated discharge valve for brake systems in motor vehicles ha capsule formed by sheet metal cup and cover connected by beading, and enclosing closure spring
CN201363245Y (en) * 2008-12-31 2009-12-16 夏建运 Piston self-sucking pump
CN201650707U (en) * 2010-03-05 2010-11-24 宁波富斯乐机械制造有限公司 Self-sucking pump used for high-pressure washing machine
CN201679672U (en) * 2010-05-21 2010-12-22 杜堂玉 High-strength plunger self-priming pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004046875A1 (en) * 2004-09-28 2006-04-13 Robert Bosch Gmbh Device for the metered filling of a liquid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735371A1 (en) * 1997-08-14 1999-02-18 Siemens Ag Fuel pump with pump cylinder
DE19963480A1 (en) * 1999-12-28 2001-07-05 Continental Teves Ag & Co Ohg Pump with encapsulated discharge valve for brake systems in motor vehicles ha capsule formed by sheet metal cup and cover connected by beading, and enclosing closure spring
CN201363245Y (en) * 2008-12-31 2009-12-16 夏建运 Piston self-sucking pump
CN201650707U (en) * 2010-03-05 2010-11-24 宁波富斯乐机械制造有限公司 Self-sucking pump used for high-pressure washing machine
CN201679672U (en) * 2010-05-21 2010-12-22 杜堂玉 High-strength plunger self-priming pump

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